func constructStartInstanceParams(
machine *apiprovisioner.Machine,
instanceConfig *instancecfg.InstanceConfig,
provisioningInfo *params.ProvisioningInfo,
possibleTools coretools.List,
) (environs.StartInstanceParams, error) {
volumes := make([]storage.VolumeParams, len(provisioningInfo.Volumes))
for i, v := range provisioningInfo.Volumes {
volumeTag, err := names.ParseVolumeTag(v.VolumeTag)
if err != nil {
return environs.StartInstanceParams{}, errors.Trace(err)
}
if v.Attachment == nil {
return environs.StartInstanceParams{}, errors.Errorf("volume params missing attachment")
}
machineTag, err := names.ParseMachineTag(v.Attachment.MachineTag)
if err != nil {
return environs.StartInstanceParams{}, errors.Trace(err)
}
if machineTag != machine.Tag() {
return environs.StartInstanceParams{}, errors.Errorf("volume attachment params has invalid machine tag")
}
if v.Attachment.InstanceId != "" {
return environs.StartInstanceParams{}, errors.Errorf("volume attachment params specifies instance ID")
}
volumes[i] = storage.VolumeParams{
volumeTag,
v.Size,
storage.ProviderType(v.Provider),
v.Attributes,
v.Tags,
&storage.VolumeAttachmentParams{
AttachmentParams: storage.AttachmentParams{
Machine: machineTag,
ReadOnly: v.Attachment.ReadOnly,
},
Volume: volumeTag,
},
}
}
var subnetsToZones map[network.Id][]string
if provisioningInfo.SubnetsToZones != nil {
// Convert subnet provider ids from string to network.Id.
subnetsToZones = make(map[network.Id][]string, len(provisioningInfo.SubnetsToZones))
for providerId, zones := range provisioningInfo.SubnetsToZones {
subnetsToZones[network.Id(providerId)] = zones
}
}
return environs.StartInstanceParams{
Constraints: provisioningInfo.Constraints,
Tools: possibleTools,
InstanceConfig: instanceConfig,
Placement: provisioningInfo.Placement,
DistributionGroup: machine.DistributionGroup,
Volumes: volumes,
SubnetsToZones: subnetsToZones,
}, nil
}
// Volumes returns details of volumes with the specified tags.
func (s *StorageProvisionerAPI) Volumes(args params.Entities) (params.VolumeResults, error) {
canAccess, err := s.getStorageEntityAuthFunc()
if err != nil {
return params.VolumeResults{}, common.ServerError(common.ErrPerm)
}
results := params.VolumeResults{
Results: make([]params.VolumeResult, len(args.Entities)),
}
one := func(arg params.Entity) (params.Volume, error) {
tag, err := names.ParseVolumeTag(arg.Tag)
if err != nil || !canAccess(tag) {
return params.Volume{}, common.ErrPerm
}
volume, err := s.st.Volume(tag)
if errors.IsNotFound(err) {
return params.Volume{}, common.ErrPerm
} else if err != nil {
return params.Volume{}, err
}
return storagecommon.VolumeFromState(volume)
}
for i, arg := range args.Entities {
var result params.VolumeResult
volume, err := one(arg)
if err != nil {
result.Error = common.ServerError(err)
} else {
result.Result = volume
}
results.Results[i] = result
}
return results, nil
}
// blobVolumeId returns the volume ID for a blob, and a boolean reporting
// whether or not the blob's name matches the scheme we use.
func blobVolumeId(blob azurestorage.Blob) (string, bool) {
if !strings.HasSuffix(blob.Name, vhdExtension) {
return "", false
}
volumeId := blob.Name[:len(blob.Name)-len(vhdExtension)]
if _, err := names.ParseVolumeTag(volumeId); err != nil {
return "", false
}
return volumeId, true
}
func createVolumeInfo(result params.VolumeDetailsResult) (names.VolumeTag, VolumeInfo, error) {
details := result.Details
if details == nil {
details = volumeDetailsFromLegacy(result)
}
volumeTag, err := names.ParseVolumeTag(details.VolumeTag)
if err != nil {
return names.VolumeTag{}, VolumeInfo{}, errors.Trace(err)
}
var info VolumeInfo
info.ProviderVolumeId = details.Info.VolumeId
info.HardwareId = details.Info.HardwareId
info.Size = details.Info.Size
info.Persistent = details.Info.Persistent
info.Status = EntityStatus{
details.Status.Status,
details.Status.Info,
// TODO(axw) we should support formatting as ISO time
common.FormatTime(details.Status.Since, false),
}
if len(details.MachineAttachments) > 0 {
machineAttachments := make(map[string]MachineVolumeAttachment)
for machineTag, attachment := range details.MachineAttachments {
machineId, err := idFromTag(machineTag)
if err != nil {
return names.VolumeTag{}, VolumeInfo{}, errors.Trace(err)
}
machineAttachments[machineId] = MachineVolumeAttachment{
attachment.DeviceName,
attachment.DeviceLink,
attachment.BusAddress,
attachment.ReadOnly,
}
}
info.Attachments = &VolumeAttachments{
Machines: machineAttachments,
}
}
if details.Storage != nil {
storageTag, storageInfo, err := createStorageInfo(*details.Storage)
if err != nil {
return names.VolumeTag{}, VolumeInfo{}, errors.Trace(err)
}
info.Storage = storageTag.Id()
if storageInfo.Attachments != nil {
info.Attachments.Units = storageInfo.Attachments.Units
}
}
return volumeTag, info, nil
}
// VolumeAttachmentInfosToState converts a map of volume tags to
// params.VolumeAttachmentInfo to a map of volume tags to
// state.VolumeAttachmentInfo.
func VolumeAttachmentInfosToState(in map[string]params.VolumeAttachmentInfo) (map[names.VolumeTag]state.VolumeAttachmentInfo, error) {
m := make(map[names.VolumeTag]state.VolumeAttachmentInfo)
for k, v := range in {
volumeTag, err := names.ParseVolumeTag(k)
if err != nil {
return nil, errors.Trace(err)
}
m[volumeTag] = VolumeAttachmentInfoToState(v)
}
return m, nil
}
func (lvs *loopVolumeSource) destroyVolume(volumeId string) error {
tag, err := names.ParseVolumeTag(volumeId)
if err != nil {
return errors.Errorf("invalid loop volume ID %q", volumeId)
}
loopFilePath := lvs.volumeFilePath(tag)
err = os.Remove(loopFilePath)
if err != nil && !os.IsNotExist(err) {
return errors.Annotate(err, "removing loop backing file")
}
return nil
}
// VolumeAttachmentToState converts a params.VolumeAttachment
// to a state.VolumeAttachmentInfo and tags.
func VolumeAttachmentToState(in params.VolumeAttachment) (names.MachineTag, names.VolumeTag, state.VolumeAttachmentInfo, error) {
machineTag, err := names.ParseMachineTag(in.MachineTag)
if err != nil {
return names.MachineTag{}, names.VolumeTag{}, state.VolumeAttachmentInfo{}, err
}
volumeTag, err := names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return names.MachineTag{}, names.VolumeTag{}, state.VolumeAttachmentInfo{}, err
}
info := VolumeAttachmentInfoToState(in.Info)
return machineTag, volumeTag, info, nil
}
func volumeFromParams(in params.Volume) (storage.Volume, error) {
volumeTag, err := names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return storage.Volume{}, errors.Trace(err)
}
return storage.Volume{
volumeTag,
storage.VolumeInfo{
in.Info.VolumeId,
in.Info.HardwareId,
in.Info.Size,
in.Info.Persistent,
},
}, nil
}
// VolumeToState converts a params.Volume to state.VolumeInfo
// and names.VolumeTag.
func VolumeToState(v params.Volume) (names.VolumeTag, state.VolumeInfo, error) {
if v.VolumeTag == "" {
return names.VolumeTag{}, state.VolumeInfo{}, errors.New("Tag is empty")
}
volumeTag, err := names.ParseVolumeTag(v.VolumeTag)
if err != nil {
return names.VolumeTag{}, state.VolumeInfo{}, errors.Trace(err)
}
return volumeTag, state.VolumeInfo{
v.Info.HardwareId,
v.Info.Size,
"", // pool is set by state
v.Info.VolumeId,
v.Info.Persistent,
}, nil
}
func volumeParamsFromParams(in params.VolumeParams) (storage.VolumeParams, error) {
volumeTag, err := names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return storage.VolumeParams{}, errors.Trace(err)
}
providerType := storage.ProviderType(in.Provider)
var attachment *storage.VolumeAttachmentParams
if in.Attachment != nil {
if in.Attachment.Provider != in.Provider {
return storage.VolumeParams{}, errors.Errorf(
"storage provider mismatch: volume (%q), attachment (%q)",
in.Provider, in.Attachment.Provider,
)
}
if in.Attachment.VolumeTag != in.VolumeTag {
return storage.VolumeParams{}, errors.Errorf(
"volume tag mismatch: volume (%q), attachment (%q)",
in.VolumeTag, in.Attachment.VolumeTag,
)
}
machineTag, err := names.ParseMachineTag(in.Attachment.MachineTag)
if err != nil {
return storage.VolumeParams{}, errors.Annotate(
err, "parsing attachment machine tag",
)
}
attachment = &storage.VolumeAttachmentParams{
AttachmentParams: storage.AttachmentParams{
Provider: providerType,
Machine: machineTag,
InstanceId: instance.Id(in.Attachment.InstanceId),
ReadOnly: in.Attachment.ReadOnly,
},
Volume: volumeTag,
}
}
return storage.VolumeParams{
volumeTag,
in.Size,
providerType,
in.Attributes,
in.Tags,
attachment,
}, nil
}
// volumeAttachmentsToState converts a slice of storage.VolumeAttachment to a
// mapping of volume names to state.VolumeAttachmentInfo.
func volumeAttachmentsToState(in []params.VolumeAttachment) (map[names.VolumeTag]state.VolumeAttachmentInfo, error) {
m := make(map[names.VolumeTag]state.VolumeAttachmentInfo)
for _, v := range in {
if v.VolumeTag == "" {
return nil, errors.New("Tag is empty")
}
volumeTag, err := names.ParseVolumeTag(v.VolumeTag)
if err != nil {
return nil, errors.Trace(err)
}
m[volumeTag] = state.VolumeAttachmentInfo{
v.Info.DeviceName,
v.Info.ReadOnly,
}
}
return m, nil
}
func volumeAttachmentFromParams(in params.VolumeAttachment) (storage.VolumeAttachment, error) {
volumeTag, err := names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return storage.VolumeAttachment{}, errors.Trace(err)
}
machineTag, err := names.ParseMachineTag(in.MachineTag)
if err != nil {
return storage.VolumeAttachment{}, errors.Trace(err)
}
return storage.VolumeAttachment{
volumeTag,
machineTag,
storage.VolumeAttachmentInfo{
in.Info.DeviceName,
in.Info.ReadOnly,
},
}, nil
}
func volumeAttachmentParamsFromParams(in params.VolumeAttachmentParams) (storage.VolumeAttachmentParams, error) {
machineTag, err := names.ParseMachineTag(in.MachineTag)
if err != nil {
return storage.VolumeAttachmentParams{}, errors.Trace(err)
}
volumeTag, err := names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return storage.VolumeAttachmentParams{}, errors.Trace(err)
}
return storage.VolumeAttachmentParams{
AttachmentParams: storage.AttachmentParams{
Provider: storage.ProviderType(in.Provider),
Machine: machineTag,
InstanceId: instance.Id(in.InstanceId),
ReadOnly: in.ReadOnly,
},
Volume: volumeTag,
VolumeId: in.VolumeId,
}, nil
}
func filesystemFromParams(in params.Filesystem) (storage.Filesystem, error) {
filesystemTag, err := names.ParseFilesystemTag(in.FilesystemTag)
if err != nil {
return storage.Filesystem{}, errors.Trace(err)
}
var volumeTag names.VolumeTag
if in.VolumeTag != "" {
volumeTag, err = names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return storage.Filesystem{}, errors.Trace(err)
}
}
return storage.Filesystem{
filesystemTag,
volumeTag,
storage.FilesystemInfo{
in.Info.FilesystemId,
in.Info.Size,
},
}, nil
}
func (a *API) createVolumeItem(volumeTag string, attachments []params.VolumeAttachment) params.VolumeItem {
result := params.VolumeItem{Attachments: attachments}
tag, err := names.ParseVolumeTag(volumeTag)
if err != nil {
result.Error = common.ServerError(errors.Annotatef(err, "parsing volume tag %v", volumeTag))
return result
}
st, err := a.storage.Volume(tag)
if err != nil {
result.Error = common.ServerError(errors.Annotatef(err, "getting volume for tag %v", tag))
return result
}
volume, err := a.convertStateVolumeToParams(st)
if err != nil {
result.Error = common.ServerError(errors.Trace(err))
return result
}
result.Volume = volume
return result
}
func filesystemParamsFromParams(in params.FilesystemParams) (storage.FilesystemParams, error) {
filesystemTag, err := names.ParseFilesystemTag(in.FilesystemTag)
if err != nil {
return storage.FilesystemParams{}, errors.Trace(err)
}
var volumeTag names.VolumeTag
if in.VolumeTag != "" {
volumeTag, err = names.ParseVolumeTag(in.VolumeTag)
if err != nil {
return storage.FilesystemParams{}, errors.Trace(err)
}
}
providerType := storage.ProviderType(in.Provider)
return storage.FilesystemParams{
filesystemTag,
volumeTag,
in.Size,
providerType,
in.Attributes,
in.Tags,
}, nil
}
func (s *StorageProvisionerAPI) oneVolumeAttachment(
id params.MachineStorageId, canAccess func(names.MachineTag, names.Tag) bool,
) (state.VolumeAttachment, error) {
machineTag, err := names.ParseMachineTag(id.MachineTag)
if err != nil {
return nil, err
}
volumeTag, err := names.ParseVolumeTag(id.AttachmentTag)
if err != nil {
return nil, err
}
if !canAccess(machineTag, volumeTag) {
return nil, common.ErrPerm
}
volumeAttachment, err := s.st.VolumeAttachment(machineTag, volumeTag)
if errors.IsNotFound(err) {
return nil, common.ErrPerm
} else if err != nil {
return nil, err
}
return volumeAttachment, nil
}
func assertParseVolumeTag(c *gc.C, tag string, expect names.VolumeTag) {
t, err := names.ParseVolumeTag(tag)
c.Assert(err, gc.IsNil)
c.Assert(t, gc.Equals, expect)
}
// VolumeParams returns the parameters for creating or destroying
// the volumes with the specified tags.
func (s *StorageProvisionerAPI) VolumeParams(args params.Entities) (params.VolumeParamsResults, error) {
canAccess, err := s.getStorageEntityAuthFunc()
if err != nil {
return params.VolumeParamsResults{}, err
}
envConfig, err := s.st.EnvironConfig()
if err != nil {
return params.VolumeParamsResults{}, err
}
results := params.VolumeParamsResults{
Results: make([]params.VolumeParamsResult, len(args.Entities)),
}
poolManager := poolmanager.New(s.settings)
one := func(arg params.Entity) (params.VolumeParams, error) {
tag, err := names.ParseVolumeTag(arg.Tag)
if err != nil || !canAccess(tag) {
return params.VolumeParams{}, common.ErrPerm
}
volume, err := s.st.Volume(tag)
if errors.IsNotFound(err) {
return params.VolumeParams{}, common.ErrPerm
} else if err != nil {
return params.VolumeParams{}, err
}
volumeAttachments, err := s.st.VolumeAttachments(tag)
if err != nil {
return params.VolumeParams{}, err
}
storageInstance, err := storagecommon.MaybeAssignedStorageInstance(
volume.StorageInstance,
s.st.StorageInstance,
)
if err != nil {
return params.VolumeParams{}, err
}
volumeParams, err := storagecommon.VolumeParams(volume, storageInstance, envConfig, poolManager)
if err != nil {
return params.VolumeParams{}, err
}
if len(volumeAttachments) == 1 {
// There is exactly one attachment to be made, so make
// it immediately. Otherwise we will defer attachments
// until later.
volumeAttachment := volumeAttachments[0]
volumeAttachmentParams, ok := volumeAttachment.Params()
if !ok {
return params.VolumeParams{}, errors.Errorf(
"volume %q is already attached to machine %q",
volumeAttachment.Volume().Id(),
volumeAttachment.Machine().Id(),
)
}
machineTag := volumeAttachment.Machine()
instanceId, err := s.st.MachineInstanceId(machineTag)
if errors.IsNotProvisioned(err) {
// Leave the attachment until later.
instanceId = ""
} else if err != nil {
return params.VolumeParams{}, err
}
volumeParams.Attachment = ¶ms.VolumeAttachmentParams{
tag.String(),
machineTag.String(),
"", // volume ID
string(instanceId),
volumeParams.Provider,
volumeAttachmentParams.ReadOnly,
}
}
return volumeParams, nil
}
for i, arg := range args.Entities {
var result params.VolumeParamsResult
volumeParams, err := one(arg)
if err != nil {
result.Error = common.ServerError(err)
} else {
result.Result = volumeParams
}
results.Results[i] = result
}
return results, nil
}
func constructStartInstanceParams(
machine *apiprovisioner.Machine,
instanceConfig *instancecfg.InstanceConfig,
provisioningInfo *params.ProvisioningInfo,
possibleTools coretools.List,
) (environs.StartInstanceParams, error) {
volumes := make([]storage.VolumeParams, len(provisioningInfo.Volumes))
for i, v := range provisioningInfo.Volumes {
volumeTag, err := names.ParseVolumeTag(v.VolumeTag)
if err != nil {
return environs.StartInstanceParams{}, errors.Trace(err)
}
if v.Attachment == nil {
return environs.StartInstanceParams{}, errors.Errorf("volume params missing attachment")
}
machineTag, err := names.ParseMachineTag(v.Attachment.MachineTag)
if err != nil {
return environs.StartInstanceParams{}, errors.Trace(err)
}
if machineTag != machine.Tag() {
return environs.StartInstanceParams{}, errors.Errorf("volume attachment params has invalid machine tag")
}
if v.Attachment.InstanceId != "" {
return environs.StartInstanceParams{}, errors.Errorf("volume attachment params specifies instance ID")
}
volumes[i] = storage.VolumeParams{
volumeTag,
v.Size,
storage.ProviderType(v.Provider),
v.Attributes,
v.Tags,
&storage.VolumeAttachmentParams{
AttachmentParams: storage.AttachmentParams{
Machine: machineTag,
ReadOnly: v.Attachment.ReadOnly,
},
Volume: volumeTag,
},
}
}
var subnetsToZones map[network.Id][]string
if provisioningInfo.SubnetsToZones != nil {
// Convert subnet provider ids from string to network.Id.
subnetsToZones = make(map[network.Id][]string, len(provisioningInfo.SubnetsToZones))
for providerId, zones := range provisioningInfo.SubnetsToZones {
subnetsToZones[network.Id(providerId)] = zones
}
}
var endpointBindings map[string]network.Id
if len(provisioningInfo.EndpointBindings) != 0 {
endpointBindings = make(map[string]network.Id)
for endpoint, space := range provisioningInfo.EndpointBindings {
endpointBindings[endpoint] = network.Id(space)
}
}
possibleImageMetadata := make([]*imagemetadata.ImageMetadata, len(provisioningInfo.ImageMetadata))
for i, metadata := range provisioningInfo.ImageMetadata {
possibleImageMetadata[i] = &imagemetadata.ImageMetadata{
Id: metadata.ImageId,
Arch: metadata.Arch,
RegionAlias: metadata.Region,
RegionName: metadata.Region,
Storage: metadata.RootStorageType,
Stream: metadata.Stream,
VirtType: metadata.VirtType,
Version: metadata.Version,
}
}
return environs.StartInstanceParams{
Constraints: provisioningInfo.Constraints,
Tools: possibleTools,
InstanceConfig: instanceConfig,
Placement: provisioningInfo.Placement,
DistributionGroup: machine.DistributionGroup,
Volumes: volumes,
SubnetsToZones: subnetsToZones,
EndpointBindings: endpointBindings,
ImageMetadata: possibleImageMetadata,
StatusCallback: machine.SetInstanceStatus,
}, nil
}
func assertParseVolumeTagInvalid(c *gc.C, tag string, expect error) {
_, err := names.ParseVolumeTag(tag)
c.Assert(err, gc.ErrorMatches, expect.Error())
}
